Propagation of Spin and Elastic-Spin Waves in Ferromagnetic Medium

2017 ◽  
pp. 203-251
Author(s):  
Gevorg Baghdasaryan ◽  
Zaven Danoyan
Keyword(s):  
Spin Waves ◽  
Ferromagnetic Medium

scholarly journals Reflection of Surface Spin Waves from the Interface of Uniaxial and Biaxial Ferromagnets in a Planar Magnetic Field

2014 ◽  
Vol 28 ◽  
pp. 71-83
Author(s):  
S.O. Reshetnyak ◽  
M.Y. Nastenko ◽  
A.S. Berezhinsky
Keyword(s):  
Magnetic Field ◽  
Spin Waves ◽  
Homogeneous Magnetic Field ◽  
Optical Parameters ◽  
Angle Of Incidence ◽  
Transmitted Waves ◽  
Mechanical Approach ◽  
Surface Spin ◽  
Quantum Mechanical Approach ◽  
Ferromagnetic Medium

The article investigates the process of reflection of surface spin waves passing through the interface of uniaxial and biaxial ferromagnets in a planar external magnetic field directed along the hard axis of ferromagnet. The problem is solved using the spin density formalism and the Landau-Lifshitz equations for the case of the absence of dissipation in the system. Geometrical optics formalism is used to describe the processes of refraction of surface spin waves propagating in the ferromagnetic medium with non uniform distribution of magnetic parameters. Quantum mechanical approach is used for calculation of the amplitudes of reflected and transmitted waves. It is shown that spin wave birefringence phenomenon appears at the interface of two uniform ferromagnetic components. Frequency and field dependencies of reflection coefficients for different branches of spin waves are obtained in the study. It is shown that it is possible to change the “optical” parameters of the system by only changing a magnitude of the external homogeneous magnetic field. It is also shown that reflection amplitude depends heavily on the angle of incidence.

Spin waves

1972 ◽  
Vol 14 (7) ◽  
pp. 233-245
Author(s):  
B. Hennion ◽  
F. Moussa
Keyword(s):  
Spin Waves

ENERGY RENORMALISATION AND DAMPING OF SURFACE SPIN WAVES IN HEISENBERG FERROMAGNETS

1984 ◽  
Vol 45 (C5) ◽  
pp. C5-329-C5-333 ◽  
Author(s):  
D. E. Kontos ◽  
M. G. Cottam
Keyword(s):  
Spin Waves ◽  
Surface Spin

SYMMETRY OF SPIN WAVES AND HALDANE GAP IN CsNiCl3

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-1431-C8-1432
Author(s):  
Z. Tun ◽  
W. J. L. Buyers ◽  
R. L. Armstrong ◽  
E. D. Hallman ◽  
D. P. Arovas
Keyword(s):  
Spin Waves ◽  
Haldane Gap

Observation of parametric amplification of propagating dipole-exchange spin waves in yttrium iron garnet films

JETP Letters ◽  
1996 ◽  
Vol 64 (3) ◽  
pp. 171-176 ◽  
Author(s):  
B. A. Kalinikos ◽  
N. G. Kovshikov ◽  
M. P. Kostylev ◽  
H. Benner
Keyword(s):  
Yttrium Iron Garnet ◽  
Spin Waves ◽  
Parametric Amplification ◽  
Yttrium Iron ◽  
Garnet Films ◽  
Iron Garnet ◽  
Dipole Exchange
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